It certainly looks like it, and apparently this load never made it to the bank.
Gold is still being mined on Bonspiel Station, which also offers a gold panning experience, and accommodation in old stone huts built by Chinese gold miners in the 1860s, and in the old Moa Flat Hotel.
The cache is a green painted 200 ml Sistema container hidden nearby.
Update: Or not hidden as the case may be. We believe the children who use the bus shelter keep an eye on the cache, and often leave it sitting in full view